Which essential nutrient is necessary for the synthesis of collagen?

Vitamin C is essential for the synthesis of collagen, a vital protein that provides structure and strength to connective tissues, skin, muscles, and bones. This nutrient plays a crucial role in the hydroxylation of proline and lysine residues in the collagen molecule, which is necessary for collagen's stability and strength. Without adequate Vitamin C, the body cannot effectively form or maintain collagen, leading to issues such as scurvy, which is characterized by symptoms including weakened connective tissues, skin problems, and bleeding gums.

While Vitamin A is important for vision and skin health, calcium is primarily known for its role in bone health, and iron is essential for oxygen transport in the blood. These nutrients contribute to overall health but do not directly influence collagen synthesis like Vitamin C does.